🛡️ CVE-2025-58767 — rexml

🟢 CVSS 2.0 — Low ✅ No Known Exploit CWE-400 OSV
2.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

REXML has DoS condition when parsing malformed XML file ### Impact The REXML gems from 3.3.3 to 3.4.1 have a DoS vulnerability when parsing XML containing multiple XML declarations. If you need to parse untrusted XMLs, you may be impacted to these vulnerabilities. ### Patches REXML gems 3.4.2 or later include the patches to fix these vulnerabilities. ### Workarounds Don't parse untrusted XMLs. ### References * https://www.ruby-lang.org/en/news/2025/09/18/dos-rexml-cve-2025-58767/ : An announcement on www.ruby-lang.org

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. Rated impact: confidentiality none, integrity none, availability low.

Weakness class

CVE-2025-58767 is classified as CWE-400: Uncontrolled Resource Consumption. A request can consume memory, CPU or storage without limit, exhausting capacity for everyone else.

Affected software and timeline

Affected software: rexml (from 3.3.3 up to 3.4.2). Published on 17 September 2025 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from OSV.

References

github.com (Web)
nvd.nist.gov (Advisory)
github.com (Web)
github.com (Package)
github.com (Web)
www.ruby-lang.org (Web)

CVE-2025-58767 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity LOW
CVSS Score 2.0
CVSS Vector CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U
CWE CWE-400
Public Exploit ✅ No
Source OSV
Published 2025-09-17
Updated 2026-08-12
Modified 2026-06-17

Affected Packages

Software From version Fixed in
rexml 3.3.3 3.4.2

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More CVE 2025 advisories

Part of CVE 2025 in the advisory index.